ISIS-2040: Update Shiro 1.2.6 -> 1.3.2
ISIS-2040: Update Shiro 1.2.6 -> 1.3.2

I'm failing to update to Shiro 1.4.0, running into unresolved issue:
https://issues.apache.org/jira/browse/SHIRO-610

Task-Url: https://issues.apache.org/jira/browse/ISIS-2040
apache/isis,apache/isis,apache/isis,apache/isis,apache/isis,apache/isis